System Board Chips - NEC POWERMATE VE - SERVICE MANUAL 08-1996 Service Manual

1-4 Technical Information
PS/2-style keyboard
bidirectional Enhanced Parallel Port (EPP) and enhanced capabilities port
(ECP) are supported for a parallel printer
serial devices through two buffered 16C550 UART serial ports, each
supporting up to 19.2 KB per second
external speakers, microphone, and headphone connectors (multimedia
configurations only)
T
MIDI/joystick connector on the system board for installation of an optional
MIDI/joystick kit
T
Audio Wave upgrade connector on the system board for installation of an optional
Wave upgrade.
Table 1-2 lists the major chips on the system board. See Appendix A, Connector Pin
Assignments, for a list of the system board connectors. See Appendix B, System Board
Jumpers, for a description of board jumpers.
Chip
P54C (CPGA)
SiS PCI/ISA Chip Set
5511
5512
5513
SMC FDC37C665
SiS 6205
U24
SiS 5513
Toshiba CR2032 Coin Cell Battery
ESS ES1788 Sound Chip
(multimedia systems only)
Yamaha OPL3-L Synthesizer Chip
(multimedia systems only)
Table 1-2 System Board Chips
Description
100/66-MHz Intel Pentium processor
133/66-MHz Intel Pentium processor
System controller
PCI/ISA cache memory controller
PCI local data buffer
PCI system I/O
Integrated Plug and Play Ultra I/O controller
PCI GUI graphics controller
128k x 8 Flash ROM
Real-time clock
3 Volt Lithium CMOS battery (SMC 935)
Onboard PC sound system
Frequency modulated synthesizer